The most common symptoms of knee arthritis are general pain, inflammation, swelling, and knee stiffness. Most types of knee arthritis develop slowly over time, gradually causing more pain and inflammation as the condition gets worse. The symptoms of knee arthritis can flare up after both extended periods of rest (sleeping, sitting, etc.) or extended periods of activity.
Other common symptoms include a “clicking” or “popping” sound in the joint, a “sticking” or “locking” feeling when trying to bend or move the knee, or a feeling of weakness in the knee during activity.